Apparatus for applying stays to box corners



ml.' l5, 1927. I l R. G. CLARK APPARATUS FOR APPLYING STAYS T0 BOX'KCORNERS Filed May 11, 1925- a sheets-snm 1v im @f1 l ,y ASEP 172'5 62 l Patented Feb. 15, 1927.,

ROB'ERT G. CLARK, OF BROOKLYN, NEW YORK, ASSIGNOR T0 SAM COHEN MACHINE l' ries.

CORPORATION, OF NEW YORK, NJY., A CORPOBATXON OF NEW YORK.

Y Lilrrnrnarus ron APPLYING sTAYsTo B0X commas.

lAltipleation filed May 11, 1925. Serial No. 29,379. y

This invention relates to apparatus for applying retaining stays or strips to corner Yjoints of boxes made of paper board wherein the stay strip is fed in the form of a web from a supply roll to the stay strip applying means including a fixed anvil upon which the corner of a box formed by the box sides is positioned andthe stay strip forcibly apwell as means to render the stay strip adhesive.

It is an object vofthe present invention to provide improved means for feeding the stay strip in the form of a continuous strip or web from a supply roll and arranging said feeding means to Vsimultaneously longitudinally fold-the web to V shape incross` section and deliver the folded web to means to render one surface of the strip adhesive and to support and fold the strip as it is delivered fromthe feeding and foldingmeans to the strip applying means.

It is a further object of the invention to provide improved means for rendering the stay strip adhesive as it is delivered by the feeding and folding means to the strip applying means. Y

In apparatus ofthis character the strip in its'delivery from the supply roll is first folded, then a surface of the strip is rendered adhesive, the strip being fed to said means by means arranged' inv advancek thereof which grips the strip at the adhesively rendered surfaces, and delivered from the feeding means to means which contacts with the adhesively rendered surface of the strip to guide thestrip to the strip applying means with the result that the adhesive is removed from portions of the strip and all portions of the strip therefor will not adhere to the corner joints of the box, andit is an object of the invention to provide means to which the folded and adhesively rendered strip is delivered to support and guide the strip to the strip applying means, said strip guiding means being arranged to support the strip without coming in contact with any porthe strip.

tion of the adhesively rendered ysurface 0f Y Other objectsand after appear.

In the drawings accompanying and forming a part of this specification, Figure l is a side elevation of a stay strip applying apparatus, withk a portion of the supporting standard broken away, and showing an emadvantages will hereinbodiment of my improved strip. feeding and` folding means applied thereto.

Figure 2 is a cross sectional view, on an enlarged scale, of the strip feedingl and folding means, taken on the line 2-2 of Figure 1 looking in the direction of the arrow. y

Figure 3 is a side elevation, partly in sec.- tion, of the actuating means for the strip feeding and foldingy means and showing the same connected to its operating means.

Figure i is an endr'elevation of a guidel and. support forthe adhesively rendered folded stripv to vdirect it tothe strip vapplying means. v I f i Figure 5 is a plan view on anenlarged scale of the stay stripy feeding and lfolding means and showing the means to render the strip adhesive in relation to said feeding and folding means. v

Figure 6 is a side elevation on an enlarged sca-le and partly in sect-ion of the means for rendering the stay strip adhesive and showing the same in relation to the strip supporting and guiding means; and l y Figure 7 is a sectional view takenl on the line -T of Figure 6 showing the means to render the strip adhesive in relation to the strip supporting and guiding means and in position to render the strip adhesive.

Similar characters of reference designate like parts throughout the different views of the drawings. v

In the embodiment of the invention illustrated the operative mechanism is mounted upon the framework (designated in ageneral way at F) supported upon a base B only a portion of which is shown, the frameright angle form in cross section and upon ywhich the bent up side flaps of the box blank are. engaged with the edges in position to be joinedtogether by a stay strip 1() delivered from a continuous strip or web through an opening in the framework above the anvil. rlhe stay. strip positioned relative to the box corner on the anvil'is severed forcibly pressed against the box corner on the anvil Vby a presser` 11 slidablyanounted in the forward end of the framework and reciprocatory toward and Yaway from` the anvil l- .by a drive shaft 12 ournalled in the arched Vportion of the frame to which the presser is eccentrically connected, as at 18, by a connecting rod 14. Previous to the pressing of Y the stay strip to the box corner on the anvil the stay strip 1s severed by a cutter 15 carried by and reciproeable with the presser `cooperating with-a cutter 16 fixed in the frameworkQV rEhe drive shaft 12 is rotated fromra suitable source of powerl by a belt 17 passing around a pulley 18 loose on the shaft `21 carried'by a reel 22 rotatably mounted on a bracket 23. The web preferably had an adhesive applied to one surface to be located at the bottom as the web is fedV to the stay strip applying means. The feeding means comprises a pair of rollers 24, 25, the roller 25 being fixed to a shaft 26 journalled in a f bracket 27 mounted to have vertical adjust- Vment with the roller 25.

ment on a vertically extending portion of an angle bracket 28 by screws 29V engaging a slot in the bracket 27 and threaded into the bracket 28. The bracket 28 is mounted upon the framework lto have lateral adjustment by screws 30 engaging in slots in the bracketand threaded into the framework, the real supporting bracket Y 23 being detachably mounted upon said bracket 28. The roll 24 is fixed to a shaft 31 journalled in a bracket 82 pivotally supported upon the bracket 27, as at A83, (Figures 1 and 5) whereby said roller may be moved into and out of engage- The rollers are l positively driven one from the other by of said leverwhereby when the lever is in one position, as shown in Figure l, the

spring will exert a force upon the leverto move a projection of the lever into engagement with a securing boss of thehousing 86 for gear 34, as shown at 39,` and thereby locking the roller 24 in operative relation to the roller 2o. To release theroller 24 the lever is actuated to move the projection thereof out of engagement with the gear housing when the one end of the spring may be readily released from the Vlug extending from the housing for gear 35. The web is guided from the supply roll to the bite of the feed-V ing` rollers by threading the samegthrough an eye in a guiding plate 40 (Figure 5) fixed to the bracket 28, the portionof the plate 'Y in which the eye is formed being at'the extremity and bent upward from Vthe horizon-V taland the part stamped from the plate to Y form the eye being bent oppositely and over which the web passes from thesupplyroll,

as clearly shown in Figure 1.`

The roller 24 has a peripheral groove of f determined length of the web toward the i stay strip applying means. This means is shown ascomprising an arm 41 pivota-lly supported from the arched portion of the frame and oscillated by a roller 42 carried by the arm co-operating with a cam 43 fixed to the drive shaft 12. The free end of the arm has one end of a strap 44 attached thereto the other en d of the strap being connected llt) to a drum 45 loosely mounted' on the exs i tended end of the feed rollercarrying shaft f 2G by a U shaped arm 4G of the bracket 27 in which the end of said shaft is journalled, and a wheel 47 having a peripheral groove of t shapel in cross section interposed between the drum and the feeding roller 25 and fixed to the feed roller shaft 26. The strap 44 is connected to the drum by folding the end of the strap upon itself and inserting said folded end laterally into a slot', as

at 48, in a. flange extending laterally from the drum with the strap engaging in an an-` nular recess in said flange. The opposite end of the strip is detachably connected to the arm 41 by looping the end ofthe strap and engaging said end laterallyin a slot in a lug, at 49, of a coupling' member 50, the lug at one end of the slot being recessed for the engagement of the looped stra-p end, as

at 51, to hold the strap from lateral displacement from the slot. The coupling member has an opening to engage said member `upon a stud 52 fixed in and extending laterally from the arm 41, and to retain said member against movement by a pull upon the strap iu one direction and from displacement from the stud it is arranged with a member 53 to engageV about the arm, as clearly shown in Figures 1, 2 andS. A forward movement of the arm 41 imparted thereto by the Cam 43 Vwill impart rotative movement through the strap 44 to the drum in a direction to ward the strip applying means, as indicated by the arrow in Figure 3, and reverse movement is imparted to the drum and the cam following roller 42 of arm 41 maintained in operative relation to the cam 43 by a spring 56 coiled about the hub of the drum with one end iiXed at 57 to the bracketarm 46 and the opposite end connected to a pinl projecting laterally from the drum, as at 58'. Means are providedsvwhich is automati` cally operative to couple the drum to the wheel 47 when the drum is rotated during the forward movement of arm 41 to rotate the wheel and thereby the feed rollers 24, 2o with the drum and operative to uncouple the drum from the wheel with no movement iinparted to the wheel. when reverse movement is imparted to the drum by the spring 56. For this purpose the drum flange is arranged in overhanging andY spaced relation to the periphery of the wheel 47 and carries a pair of diametrically oppositely disposed shoes (i0, said shoes being pivotally mounted within the drum flange by engaging a rounded portion thereof laterally into a similarly formed recess in the drum flange, as at 61, the shoes havinO a part shaped to conform to the V groove in the wheel 47 and to engage in the wheel groove, as at 62, said shoes being urged in a direction to engage in the wheel groove by a spring 63 seatedl in a recess in the shoes and bearing against the drum flange. The shoes are retained in position in the drum flange by an annular member 64 secured to the drum flange at the side of the shoes opposite to the'drum.v rIhe end of the shoes are in the form of an arch of a circle as shown and as the drum is rotated through the movement of the arm 41 the shoes through frictional contact with the wall of the groove of wheel 47 will be rocked upon their pivotal supports and caused to he forcibly Ywedged into frictional Contact with the wall of the wheel groove thereby coupling the drum to the wheel 47 and feed rollers 24, 25. As reverse movement is 'imparted to the drum by the spring 56, the frictional Contact of the shoes with the wheel groove will operate to release the shoes therefrom thereby releasing the wheel and disconnecting the feed rollers from the drum.

' To feed and fold variable predetermined lengths ofthe web adjustable stop means is provided lfor the arm 41, the adjustment of which stop means isproportional to the adjustment of the anvil 9 and comprises-a' lever 65 pivotally supported upon the arched portion of the framework, as at 66, one end of the lever being pivotally connected at 67'y with the anvil and the opposite end engaging an adjustable stop 67' in the form of a headed set screw threaded into the arm 41, said vadjustable stop 67 being provided for effectingfurther adjustment in the feeding of the web. i

' The folded web or strip with the gummed surface on the inner or under side thereof is delivered from the feed and folding rollers to means to support and guide the web to the strip applying'. means. This means v comprises a bar 68 fixed to an arm 27 a, of the bracket 27 extending forwardly of the feed' rollers, the barGS being arranged in a hori-l zontal plane withthe lower surface substantially in line with the bite between the feed rollers. A member'69 of channel shape in cross section, with one of the flanges 70 of increased width and whereby it is secured to and suspended from the bar 68 with the connecting portion of the flanges of said channel bar in fixed spaced relation to the under surv face of the bar 68. By this arrangement the supporting' and guiding' means as the folded strip is delivered bythe feed rollers the outer-surface ofthe fold'ofv the strip will engage with the under sideV vof the bar G8 vand the opposite longitudinal edges with the channel bar 69 at the corners formed by the juncture of the connect-ing portion with the flanges of said member and said means supporting and guiding the stripand maintaining the same in inverted V shape.

As stated, one surface of the stay strip or web is gummed, constituting the inner or under surface of the strip when folded, and to render said surface adhesive means are provided to meisten said gummed surface, saidmeans beinginterposed between the feed rollers and the strip applying means. This means comprises a liquid carrying trough 71 pivotallysupported, as at 72, upon the bracket 27 to be adjusted ,tov position below the strip supporting and guiding means and retained in such position by a latch 73 pivotally mounted upon the bracket 27 to swing on an axis transverse` to the yaxis of the trough support. The liquid from the trough is applied to the gummed surface lof the web by means engaging in the liquid inthe trough and havshown is in the nature of a duplex brush,

or a pair of brushes 74, Vmounted in au of integral arms 77 whereby the holder isV pivotally` inountedlupon the ti'ough, as at 78., The one brush 74e is arranged so that a part vthereof is engaged in the liquid in the trough and thefree ends of the bristles pass `through the opening'V in the bottom of the guide: meinbei (S9 and engage with the strip in the guide. The other brush 75 is arranged in contiguous relation to the brush 74 with the fi'ee ends of the bristles Viininersed in the liquid in the trough, as clearly shown Jin Figure 6, whereby should lthe liquid level in the trough below the liquid will be transmitted by capillary actionfrom the brush 75 to the brush "74. To regulate the liquid applied to the strip the delivery of liquid by the brush T4; by capillary action is regulated by squeezing tliebristles of said brush together to a more or less degree. llFo'rA this. purpose there is provided a roller i9 extending transversely of the brush bristles in opposed relation to. a fixed wall of vthe brush holderY and eccentrically nounted iii the holder. To rotate said roller itis provided with a handle 80. It will be obvious that by rotating said eccentrically supported roller the bristles of the brush will be squeezed together to a more or less extent, and the tighter they are squeezed together v the less will be the capillary action of the brush and the application of moisture to the strip. The brush 74, as stated, engages in the strip through an opening in the bottom of the guide member 69, as shown in Figures 6 and 7. rlhis opening is formed by transversely r.slitting the bottom of said guide member at predetermined points, and then slitting the .portion of the bottom between said transverse slits longitudinally of Yand midway between the sides of said guide member. These slitted portions are then bent downwardly and laterally, as shown at 8l, and the portions of the bottom of the guide member at opposite endsY of said portions Sl Vare bent or deflected slightly as at 82. By this arrangement any surplus liquid will be drainedback into the trough. y

The brush 74 contacts with the gummed surface of the strip in the guide, and the ends of the bristles of the brush are so iliaped that they'will engage with the eniire surface of the strip, as shown in Figure To maintain the. brush forcibly though yieldingly in contact with the stri 3 spring 8? is provided connected at one end to the trough and brush holder, as vat il, said connection being such that when thel brush is `in .contact with the strip in the` guide the longitudinal axis of the spring will be above a line extending through the supporting arms of the brush holder and its pivotall sition withv the brush in contact with theV strip iii theguide. The upward movement of the brush is limited by the ends ofthe holder arms 77 coming into` engagement with the trough, as at 8,5. r`When the apparatus is not in use to prevent any gum which ymight adhere to the bristles from hardening thereon the brush holder is adjusted into the trough so` that the free ends of the bristles kwill be vimmersed in the liquid therein, as shown in dotted lines in Figi l, the holder being retained in such position by the spring 83. By the arrange mentof pivotally mountingthe trough it may be swung to position away from below the strip vguiding means for replenishing the liquid, cleaning or otherwise.

ij in its advanced position.

Y To further guide the strip after it has been rendere ladhesive the upperY guide member or bar 68 is extended forwardly of the lower guide. member 69 toward the strip rlhe c`on-V 'tact of the brush with the strip firmly holds applying means, as clearly shown in Fig` ure l. At the extremity of the bar a guide and support 86 for the lower marginal edges of the strip is provided the lower wallvof which inclines from the front to the rear to facilitate the passing of the strip therethrough, and a plate 87 to engage the upper surface of the strip, the V shape edgeV being arranged as a cutting edO'e Vwhereby the strip extending forward of the saine may be severed by exciting an upward pull thereon to remove a portion of the strip the gumined surface of which has not been rendered adhesive, since should the apparatus be stopped for anyv length of time with the stay strip therein the gummed surface of the strip forwardly of the means foi' rendering the strip adhesive becomes dry and con-k sequently would not adhere to a box corner on the anvil.V Should the apparatus be stopped a suliicient length of time for the gunimed surface previously rendered adhesive to become dry the apparatus is operatedV until the gumined surface'of the strip delivered from the guiding means 86,' 8'( is adhesive when the strip is severed at said guide.

By the arrangement of guiding means described it will be obvious the strip is supported and guided at all times with no part of the guiding means in contact with the adhesive surface and a possibility of remov-V ing part of the adhesive. Furthermore, there is no strain whatever upon the strip from the feeding to; the. .strip applying means with the result there is no possibility of the strip being broken. Also the thread ing of the strip to the feeding and guiding means is greatly facilitated since all that is `in the scope of the invention.

I-Iaving thus described my invention I claim:

l. In apparatus for the purpose specified, stay strip applying means including a fixed anvil and a reciprocatory pressing member to co-operate With the anvil, means operative alternately with the pressing member to intermittently feed a stay strip tovvard the strip applying means and simultaneously longitudinally crease the same, and means arranged intermediate the feeding means and the applying means to render said strip adhesive.

2. In apparatus for the purpose specified,

stay strip applying means including an anvil and a reciprocatory pressing member to co-operate with the anvil, means to intermit-tently feeda stay strip from a supply roll in a direction toward the stay applying means and simultaneously fold the same to V shape in cross section, means to Which the stay strip is delivered from said feeding and folding means to guide the strip at the edges and fold to the applying means, and means arranged intermediate the feeding means and the applying means and relative to said guiding means to render the stay strip adhesive. i 3. In apparatus for the purpose specied,

stay strip applying means including an an-V v applying means to Which the folded Web is delivered from the feeding means to support and guide the Web at the ungummed surface, v

face on the inner side thereof, a liquid car.

'rying trough intermediate. I the `feeding trough and a part to engage vvith thel gummed surface of the Web to meisten said gummed surface through capillary action as the web is fed.

5. In apparatus for the purpose specied, stay strip applying means including an 'anvil and a reciprocatorypressing member to co-operate With the anvil, means'to intermittently feed a web having a gummed surface toward the applying means and simultaneously longitudinally foldthe same to V shape in cross section with the gummed surface on the inner side thereof, a liquid carrying trough intermediate the feedin means and applying means, means arrange in superposed relation to said troughv to guide and maintain the Web in its folded condition, and means to engage in the trough and with the gummed surface of the web to moisten the gummed surface of the web during the feeding thereof.

In apparatus for the purpose specified, stay strip applying means including an anvil and a reciprocatory pressing member to co-operate with the anvil, means to inter-V by the trough to partly engage therein and the free ends of the bristlesto engage the gummed surface ofthe Web in the guiding means to moisten the same. Y

7. In apparatus for the purpose specied inraccordance With claim 6 wherein means is1 provided to yieldingly urge the brush into engagement With the Web in the guide.

8. In apparatus for the purpose specified in accordance With claim 6` wherein a brush is adjustably carried in the trough and adapted tol be adjusted to position to engage the web in the guiding means and out ofengagement With the` Web and to engage in the trough, and means to yieldingly urge the brush in a direction toward the Web When in engagement therewith vand Vsaid means being adapted to retain the brush in posi-y tion in the trough when adjusted to Aposition out of engagement with the Web.

V9.` In apparatus for the purpose specified,

stay strip applyingmeans including any anvil and a reciprocatory pressing member toy co-operate with theY anvil, means to interV lmittently feed a Web having a-gummed sur-v face toward the applying means andsimul shape in cross section withthe gummed sur-l tion, and a brush pivotally supported by the trough, said brush being arranged with bristles the free ends of which engage in the trough and with bristles the free ends of which engage with the guinined surface of the web in the guiding means to inoisten the same. Y

10. In apparatus forV the purpose specified, stay strip applyingmeans including an anvil and areciprocatory pressing member toco-operate with the anvil, means to intermittently feed a web having a gummed surface ltoward the applying means and simultaneously longitudinally fold the same to V shape iii cross section with the gumme-d surface on the inner side thereof, a liquid carrying trough intermediate the feeding means and applying means, means arranged in superposed relation to said trough to guide and maintain the web in its folded condition, a brush pivotally mounted upon the trough to partly'engage therein and the free ends of theV bristle-s to engage the gumined surface of the web in the guiding means to moisten the same by capillary action, and adjustable `means to increase or decease the capillary action of said brush.

11. In apparatus for the purpose specified, in accordance with claim 6, wherein a brush is adjustabiy carried by the trough and adapted to beadjusted to position to engage partlyA in the trough and with the gummed'surface of the web in the guiding means, and to be adjusted out of engagement withV the web and to engage wholly in the trough, anda spring operative to yieldingly urge therbrush in a direction toward the web when in engagement therewith and to retain the brush in theV trough when adjusted to position therein and'out of con- `tact with the web.

kto V shape in cross section with the gummed surface on the inner side thereof,'a liquid carrying trough intermediate thel Vfeeding means andapplying means, means arranged inl superposed relation to saidtrough to vguide and maintain the web in its folded condition, .a brush pivotally carried bythe trough to partly engage therein and the free ends ofthe bristles to engage an opening in the guiding means and the gummed surface of the web, and the opening in the guiding means being arranged to direct surplus moisture from the web to the trough. Y

13. In apparatus for the purpose specified, stay strip applying means including an I pivotally mounted on the trough to partly engage the brush in the trough and position the free ends of the bristles inengagement with the gummed surface of the web to moisten the web by capillary action, and said carrier being arranged with adjustable clamping means for the brush toV increase or decrease the capillary action thereof. Y

1li, In apparatus for the purpose specified, stay strip applying means including an anvil and a reciprocatory pressing member to co-operate with the anvil, means to intermittently feed'a web having a gunimed surface toward the applying means and simnltaneouslyV longitudinally fold the same to V shape incross section with the gummed surface on the inner side thereof, means interposedv between the feeding means and applyingmeans to guide and maintain the web in its folded condition, a pivotally supported liquid carrying trough adapted to be adjusted to vposition below the guiding means, and a brushadjustably mounted on the trough and'adapted to partly engage therein and with the free ends engaging with the gunnned surface ofthe web in the guiding means to meisten said surface of the web.

15. In apparatus for the purpose specified, stay strip applying means including a Y fixed anvil and a presser reciprocatorytoward and away from the anvil, means operative alternative with the presser to feed a predetermined.length of a strip toward the stay strip applying means and simultaneously longitudinally fold the same to V shape, means interposed betweenY the strip applying means and feeding means'operative during the feeding of the strip toV ren-` Y Yder the undersurfacethereofY adhesive, and means to which the strip is delivered 'freni the feeding and folding means to support and guide the stripy to the strip applying meanswithout contacting withV the adhesively rendered surface Of the strip.l

16. In f apparatus y inV Yaccordance with claim 15 wherein the Vstay strip supporting and guiding means comprises afixed bar for engagement lof the bend of the strip, and a Vchannel member extending parallel and in spaced relation to the bar for engagement of the edge portions of the strip.

17. In apparatus for, the purpose specified, stay strip applying means including a fixed anvil and presser reciprocatory toward and away from the anvil, a pair of rollers to feed and simultaneously longitudinally fold the stay strip, means to intermittently rotate. said rollers to feed a predetermined length of the strip, means to render one surface of the folded strip adhesive during the feeding thereof, and means to which the fed and folded strip is delivered from the rollers to support and guide the strip to the stripapplying means without contacting With the adhesively rendered surface of the strip.

18. In apparatus for the purpose specified in accordance with claim 17 in Awhich the means to impart feeding movement to the feed and vfolding rollers comprises a drum rotatably supported Ycoaxially of one of the feed rollers and normally urged in one direction, means operative alternately with the reciprocation of the presser to' impart reverse rotative movement to said drum, and means to couple said drum to the one feed roller during the latter movement of the drum. Y i

19. In apparatus for the purpose specified, stay strip applying means including a fixed anvil and a presser reciprocatory toward and away from the anvil, a drive shaft to Which the presser is eccentrically connected to reciprocate the presser from the rotation of the shaft, a pair of rollersone roller having a V-shapedrperipheral groove and the other roller having the periphery shaped to conform to and engage in the groove of the first roller, saidA rollers being operative to feed and simultaneously longitudinally fold said strip to V shape vand deliver the folded strip to the strip applying means, and means operative from the drive shaft to intermittently rotate said rollers alternately With the reciprocation of the presser to feed a predetermined length of folded strip toward the strip applying means. f

20. In apparatus for the purpose specified in accordance with claim 19 in which thev means to impart feeding movement to the rollers comprises a drum rotatably supy ported coaxially of one of the rollers, a spring-to normally urge said drum in one direction, a cam on the drive shaft, a pivot-A ally supported arm arranged `With a cam follower to oscillate said 'arm by the cam from 4the rotation of the shaft, a strap to operatively connect the arm With the drum to impart movement to the drum in a directionfreverse to that in which' it is moved by its spring as the arm is moved in one direction, and means to operatively connect the drum to the one roller during said latter movement of the drum, said means being automatically released from the roller when the drum is rotated by its spring.

' 21. In strip feeding means for stay strip applying apparatus, a pair of rollers one of said rollers having a peripheral V groove and the periphery of the other roller shaped to conform to and engage in the peripheral groove of the first roller to feed and simultaneously longitudinally fold the stripto V shape in cross section, means to rotate said rollers in one direction comprising a drum rotatably supported coaxially of one of the rollers, a Wheelfarranged concentrically of the drum rotatable With the one roller, and

'means torcouple the drum to said Wheel and the feed rollers ywhen rotatedv in one direction and release the drum therefrom vvhen rotated in reverse direction. i

22. In stripk feedingv means for staykstrip applying apparatus in accordance With claim 21 wherein the rollers are fixed on rotatable shafts and the drum is loose on the shaft of one roller and the Wheel is fixed to said shaft Within and concentrically of the drum.

23. In strip feeding` means for stay strip applying apparatus in accordance with claim 21, wherein the rollers are fixed on rotatable shafts, the drum is loose on one of said shafts andthe Wheel is fixed tos-aid shaft vWithin' andconcentrically of the drum, of an over= riding clutch interposed betvveen'the drum and Wheel operative to couple the drum with the Wheel and rollers When the drum is rotated in one direction and release the drum therefrom when rotated in reverse direction.

24. In strip feeding means for stay strip applying apparatus in accordance Wit-h claim 21, wherein the rollers are fixed on rotatable shafts and one shaft driven from the other .shaft by a gear on one shaft meshing with a gear on the other shaft, rand means to rotate the rollers in one direction comprising a drum loose on one of the roller shafts, a Wheel fixed to said shaft arranged Within the drum, and over-riding clutch mechanism operative to couple the drum to said Wheel and therrollers When thedrum is rotated in one direction and release the drum therefrom when rotated in reverse direction.

25. In strip feeding means for stay strip applying apparatus in accordance With claim 21, wherein the' rollers are fixed upon rotatlili) able shafts and the oneY shaft positively y driven from the other shaft, ajdrum looseon oneof the roller shafts, a Wheel arranged concentrically of the drumV fixed to said shaft' having a.k peripheral VV-groove, said drum being urged in one direction by a spring, and means for coupling the drum to the Wheel and rollers comprising spring in fiuenced shoes pivotally carried by the drum adapted to frictionally engage the Wall of the peripheral groove of the Wheel when the drum is rotated in one direction against the action of the spring and said` shoes moved out of frictional engagement With the Wheel groove and release the drum from the Wheel when the drum is rotated in reverse direction by the spring.

26. In strip feeding means for strip ap plying apparatus in accordance with claim 2l, in Which the one roller is positively driven from the other roller and one roller is pivotally supported and yieldingly urged into engagement with the other roller.

27. In apparatus for the purpose specified in accordance With claim 19 in Which the means to impart feeding movement to the rollers comprises a'drum rotatably supported coaxially of one of the rollers, a spring to normally urge said drum in one direction, a cam on the drive shaft, a pivotally supported' arm arranged With a cam follower to oscillate said arm by the cam from the ro tation of the shaft, a strap having one end connected to the arm by a coupling member arranged with a slot for engagement of a looped end of the strap and having a perforation to engage the member upon a stud in the arm, andv said member arranged vvitli a-part to engage about the arm to hold it against pivotal movement on and displaceg ment from the stud, and means to operatively connect the drum to the one roller during said latter movement of the drum, saidY means being automatically released from the roller when the kdrum is rotated by its spring.

28. In strip feeding means for stay strip applying apparatus, means to feed and simultaneously longitudinally yfold the strip upon itself to V shape in cross section, meansV to which the st-rip is delivered from the feedingl and folding means to render a. surface of the strip adhesive, and means for supporting, guiding and maintaining the strip in V shape as it is delivered from the ,feeding and folding means, during,l the period it is being rendered adhesive and delivered from said adhesive rendering means Without con tacting with the adhesive surface of the strip.

29. In stay strip applying apparatus, strip feeding and folding means, and means to render the strip adhesive to which the strip is delivered from and by the feeding means,V

30. In stay strip applying apparatus, strip feeding and folding means, means torrender the strip adhesive to which the strip is delivered from and by the feeding means, and means to support and guide the strip as it is delivered to the adhesive rendering means and delivered from said latter means Without contacting` with the adhesively rendered surface of the strip. Y

Signed at New York city, in the :county of New York and State of New York this 4th day of May, 1925.

ROBERT G. CLARK. 

